Gaya APA
Loon, H, W, V.
(-1957).
The story of mankind, 5th pr. Cet.pertama 1954.
.
(New York):
Pocket Library.
Gaya MLA
Loon, Hendrik, Willem, Van..
"The story of mankind, 5th pr. Cet.pertama 1954. ".
(New York):
Pocket Library,
-1957.
Buku.